This property indicates how many live sound instances there are at the moment.

loading : bool

This property indicates if the audio engine is loading any audio sample at the moment. This may be useful if you specified the preloaded property in AudioSample and would like to show a loading screen to the user before all audio samples are loaded.

This property holds the reference value of the sound speed (in meters per second) which will be used in doppler shift calculation. The doppler shift calculation is used to emulate the change in frequency in sound that is perceived by an observer when the sound source is travelling towards or away from the observer. The speed of sound depends on the medium the sound is propagating through.